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Super Precision Angular Contact Ball Bearings 71818 CD/P4DBA

Super Precision Angular Contact Ball Bearings 71818 CD/P4DBA

The 71818 CD/P4DBA is a super precision angular contact ball bearing with a 90mm bore and 115mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 8055 lbf and operates smoothly at speeds up to 15,000 RPM.

Its 15° contact angle and matched arrangement (2 bearings DB) provide excellent stability for high-precision applications. The phenolic cage ensures quiet operation and long service life.

This bearing is preloaded for extra light performance, making it ideal for machine tools or spindle drives. It works in temperatures from -30°C to 110°C and comes lubricated for ready use.

Weighing 0.56kg, it’s a robust yet compact choice for demanding setups. Compliant with P4 tolerance standards, it’s interchangeable with SKF equivalents for easy replacement.

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Product Parameters

  • Part Number 71818 CD/P4DBA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 115 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 26 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.144 mm
  • Ball Qty 31
  • Contact Angle 15°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 8055 lbf
  • Static Radial Load 11925 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.56 kg
Super Precision Angular Contact Ball Bearings 71818 CD/P4DBA dimension drawing
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Features

Performance Features of 71818 CD/P4DBA Bearing

71818 CD/P4DBA Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and balls enhance durability, while the phenolic cage ensures smooth operation at high speeds.

With a dynamic radial load capacity of 8055 lbf, 71818 CD/P4DBA Bearing handles demanding conditions reliably.
Its extra light preload (Class A) reduces friction, making it suitable for precision tasks.

71818 CD/P4DBA Bearing operates efficiently at speeds up to 15,000 rpm, maintaining performance in a temperature range of -30°C to 110°C.
The matched arrangement of two bearings (DB) provides stability and balanced load distribution.

The open seal design allows for easy lubrication, ensuring long service life with minimal maintenance.
Its P4 tolerance class guarantees high precision, making it ideal for critical applications.

Application

Key Fields for 71818 CD/P4DBA Bearing
In machine tools, 71818 CD/P4DBA Bearing excels with its super precision design, handling high-speed spindle operations smoothly. The 15° contact angle ensures stable performance under both radial and axial loads.

Where Is 71818 CD/P4DBA Bearing Used?
You’ll often find 71818 CD/P4DBA Bearing in robotics, where its matched arrangement reduces vibration for precise movements. The phenolic cage offers quiet operation, ideal for automated systems.

Optimized for Performance: 71818 CD/P4DBA Bearing
For aerospace applications, 71818 CD/P4DBA Bearing’s P4 tolerance class guarantees accuracy in critical components. Its chrome steel construction withstands demanding conditions without compromising reliability.

Automotive vs Aerospace: Applications of 71818 CD/P4DBA Bearing
In automotive transmissions, 71818 CD/P4DBA Bearing supports high-speed rotations with minimal friction. Meanwhile, aerospace systems benefit from its lightweight yet durable phenolic cage for fuel efficiency.

Practical Applications of 71818 CD/P4DBA Bearing
Medical imaging devices rely on 71818 CD/P4DBA Bearing for smooth, precise rotations in scanners. The extra light preload ensures consistent performance over long operational periods.

Q&A

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